package com.tplan.tplanfontpageserver.config.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;

import com.netflix.hystrix.strategy.concurrency.HystrixRequestContext;

//开启熔断上下文
@WebFilter(urlPatterns = "/*", filterName = "hystrixFilter")
public class HystrixFilter implements Filter {

    @Override
    public void destroy() {

    }

    @Override
    public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2)
            throws IOException, ServletException {
        HystrixRequestContext ctx = HystrixRequestContext.initializeContext();
        try {
            arg2.doFilter(arg0, arg1);
        } catch (Exception e) {

        } finally {
            ctx.shutdown();
        }

    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {
    }

}
